• Sanjeev Kumar
• Raja Pradhan
• Minesh Vohra
• Aashish Sharma

The heat exchanger is designed to provide the amount of thermal energy needed to either heat or cool a fluid stream during the operation. The heat transfer rate is significant for choosing a particular types of heat exchanger. In this experimental study, the performance of the double pipe heat exchanger in which inner pipe is corrugated pipe with pitch of 3mm and corrugation of 3mm is evaluated. Two working fluids are used in this double pipe heat exchanger in which outer fluid is distilled water and inner fluid is distilled water with 0.025%, 0.05% and 0.075% concentrations of coper oxide nanoparticles. The results show that with increase the concentration of nanoparticles, the heat transfer rate is also increased but with it solely depends upon the mass flow rate. As mass flow rate increase, the heat transfer capacity of the fluid decrease. It is found that with mass flow rate of 0.04 kg/s, the Nusselt number is 93 at Reynold number of 3000. By comparing the Nusselt number of base fluids with Nusselt number with nanoparticles with base fluid, it is found that Nusselt number is increased 1.66 at Reynold number of 1715 for nanoparticles concentration of 0.075%. The value of the Nusselt number goes on decreasing as mass flow rate increases to 0.07kg/s. The result shows that, system is not effective for high mass flow rates. The effectiveness of the heat exchanger at Reynold number of 1715 is 0.26 and 0.24 at 0.075% and 0.05% concentration of nanofluids respectively.

Corrugated pipe, nanoparticles, mass flow rates, Nusselt Number, Heater, Thermostat

"Performance Evaluation of Nanofluid Based Heat Exchanger", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.1885-1899, January 2019, Available :http://www.jetir.org/papers/JETIRDY06299.pdf

"Performance Evaluation of Nanofluid Based Heat Exchanger", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp1885-1899, January 2019, Available at : http://www.jetir.org/papers/JETIRDY06299.pdf